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  2. Magnesium chemical conversion treatment Non-chromium chemical conversion treatment [GD] (Art 1 Co., Ltd.)
Magnesium chemical conversion treatment Non-chromium chemical conversion treatment [GD]-Chromium-free chemical conversion treatment [GD]
Magnesium chemical conversion treatment Non-chromium chemical conversion treatment [GD]-Art 1 Co., Ltd.

Magnesium chemical conversion treatment Non-chromium chemical conversion treatment [GD]
Art 1 Co., Ltd.

About This Product

■Features

Environmentally friendly non-chromium chemical conversion treatment. Do you want to improve the corrosion resistance of magnesium, but do not want to use chromium-based chemical conversion treatment, or are you worried that non-chromium does not have good corrosion resistance? The GD coating developed by our company is an environmentally friendly coating that does not contain hexavalent chromium and has excellent corrosion resistance. Corrosion resistance and paint adhesion, which were difficult to achieve with chromium-free products, can be improved.

■Non-chromium chemical conversion treatment [GD] overview

Among practical metals, magnesium has excellent properties such as low density, high specific strength, and electromagnetic shielding properties, and is used in portable electronic devices such as smartphones and notebook computers, medical supplies, automobiles, and the aircraft industry. It is widely used in parts such as. However, magnesium has the disadvantage of significantly poorer corrosion resistance than other practical metals, so in order to put it into practical use, it is necessary to apply a surface treatment suitable for the intended use of the product. Chemical conversion treatment is a type of surface treatment that forms a film on the surface of materials such as metals using chemical methods. By causing a chemical reaction on the surface of the material and changing its surface condition, it gives properties that the original material lacked, such as increasing corrosion resistance and improving adhesion with paint.

■Chemical conversion treatments for magnesium alloys are broadly classified as follows.

・Method using chromic acid as the main ingredient, which has excellent corrosion resistance ・Chromium-free, which is easily affected by the surface condition of the material (degree of contamination, etc.) In recent years, there has been a shift to chromium-free processing solutions that do not use hexavalent chromium, which is toxic, from the perspective of protecting the natural environment and preventing health damage. However, it is difficult to maintain sufficient corrosion resistance with chromium-free treatment. In order to solve these problems that occur with hard alumite treatment, we have developed a chromium-free chemical conversion treatment (GD coat) that has excellent corrosion resistance. Our GD coat is an environmentally friendly chemical conversion coating made of phosphoric acid. In addition to improving corrosion resistance, which was considered difficult to achieve with chromium-free coatings, GD coating has excellent features such as paint adhesion and electrical resistance.

■Non-chromium chemical conversion treatment [GD] application

・Electronic equipment ・Medical related supplies ·car ・Aircraft industry

  • Product

    Magnesium chemical conversion treatment Non-chromium chemical conversion treatment [GD]

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1 Models of Magnesium chemical conversion treatment Non-chromium chemical conversion treatment [GD]

Image Part Number Price (excluding tax) Surface resistance value Tone Film thickness Paint adhesion (former JIS grid test) SST (Salt Spray Test Method)
Magnesium chemical conversion treatment Non-chromium chemical conversion treatment [GD]-Part Number-Chromium-free chemical conversion treatment [GD]

Chromium-free chemical conversion treatment [GD]

Available upon quote

0.2~1.0Ω

Light milky white to light gray

1μm or less (*May be around 0.01~0.03mm as pre-treatment)

100/100

R.N9.5 or higher (48 hours continuous spraying)

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Art 1 Co., Ltd.

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